Briefly discuss the body's glycogen and fat storage systems regarding each system's ability to supply the body with sugar
The glycogen stored in the liver provides a reserve supply of the body's sugar, glucose, and thus can sustain cell activities if intervals between meals become so long that glucose absorbed from ingested foods is used up. When the body is depending solely on liver glycogen, however, the supply is used up within three to six hours. Similarly, fat cells store reserves of fat, the body's other principal energy nutrient. Unlike the liver, however, fat cells have virtually infinite storage capacity and can continue to supply fat for days, weeks, or even months when no food is eaten.
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Gestational diabetes ________.
A. is most common in women with a family history of diabetes. B. can develop into a deadly condition called eclampsia. C. is a normal and expected condition seen during pregnancy. D. All of these choices are correct.
Which of the following hormones is secreted by the thyroid gland when blood levels of calcium are too high?
A. calcitonin B. thyroxin C. parathyroid hormone D. T3
Which of the following meals has the largest effect on satiety and helps reduce the intake of food?
a. Caesar salad with salmon b. Two donuts c. A glass of orange juice d. A bag of potato chips
Which of the following is NOT considered a heavy metal?
a. Iron b. Lead c. Mercury d. Cadmium